Research on Modified High-Performance Cement Mortar of Prefabricated Buildings Based on Orthogonal Test
Abstract In order to improve the construction technology level of the connection nodes of prefabricated buildings and improve the mechanical properties, fluidity and economy of the connection mortar, this paper adopts the orthogonal experimental design to improve the cement mortar by adding polymer...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-09-01
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| Series: | International Journal of Concrete Structures and Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40069-022-00534-8 |
| _version_ | 1798001648785686528 |
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| author | Chengbin Yuan Yu Cai Qiang Gu Di Sang |
| author_facet | Chengbin Yuan Yu Cai Qiang Gu Di Sang |
| author_sort | Chengbin Yuan |
| collection | DOAJ |
| description | Abstract In order to improve the construction technology level of the connection nodes of prefabricated buildings and improve the mechanical properties, fluidity and economy of the connection mortar, this paper adopts the orthogonal experimental design to improve the cement mortar by adding polymer dispersible polymer powder. A modified high-performance mortar with 1d compressive strength of 11Mpa, 3d compressive strength of 19Mpa, 7d compressive strength of 26Mpa, fluidity of 102 mm and final compressive strength higher than M25 was studied. The factors and levels of the orthogonal test are: mortar ratio 1:3,1:4,1:5; silica powder content of 4%,6%,8%; dispersible polymer powder content of 3%,5%,7%. After research, the optimal mixing ratio of modified high-performance mortar is 1:3, the content of silicon powder is 6%, the content of redispersible latex powder is 3%, the content of early strength water reducing agent is 0.1%, and the content of defoamer is 0.5%. The new modified high-performance cement mortar is characterized by short setting time and high early strength, which provides a new idea for the connecting materials of prefabricated buildings, which is of great significance for improving the integrity of prefabricated buildings and the durability of the connection. |
| first_indexed | 2024-04-11T11:39:38Z |
| format | Article |
| id | doaj.art-005aa912478748ba9cd65f35a3115ccc |
| institution | Directory Open Access Journal |
| issn | 1976-0485 2234-1315 |
| language | English |
| last_indexed | 2024-04-11T11:39:38Z |
| publishDate | 2022-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Concrete Structures and Materials |
| spelling | doaj.art-005aa912478748ba9cd65f35a3115ccc2022-12-22T04:25:52ZengSpringerOpenInternational Journal of Concrete Structures and Materials1976-04852234-13152022-09-0116111410.1186/s40069-022-00534-8Research on Modified High-Performance Cement Mortar of Prefabricated Buildings Based on Orthogonal TestChengbin Yuan0Yu Cai1Qiang Gu2Di Sang3College of Hydraulic Science and Engineering, Yangzhou UniversityCollege of Hydraulic Science and Engineering, Yangzhou UniversityCollege of Hydraulic Science and Engineering, Yangzhou UniversityCollege of Hydraulic Science and Engineering, Yangzhou UniversityAbstract In order to improve the construction technology level of the connection nodes of prefabricated buildings and improve the mechanical properties, fluidity and economy of the connection mortar, this paper adopts the orthogonal experimental design to improve the cement mortar by adding polymer dispersible polymer powder. A modified high-performance mortar with 1d compressive strength of 11Mpa, 3d compressive strength of 19Mpa, 7d compressive strength of 26Mpa, fluidity of 102 mm and final compressive strength higher than M25 was studied. The factors and levels of the orthogonal test are: mortar ratio 1:3,1:4,1:5; silica powder content of 4%,6%,8%; dispersible polymer powder content of 3%,5%,7%. After research, the optimal mixing ratio of modified high-performance mortar is 1:3, the content of silicon powder is 6%, the content of redispersible latex powder is 3%, the content of early strength water reducing agent is 0.1%, and the content of defoamer is 0.5%. The new modified high-performance cement mortar is characterized by short setting time and high early strength, which provides a new idea for the connecting materials of prefabricated buildings, which is of great significance for improving the integrity of prefabricated buildings and the durability of the connection.https://doi.org/10.1186/s40069-022-00534-8modified cement mortarorthogonal testcompressive strengthfluiditymortar ratiosilica fume content |
| spellingShingle | Chengbin Yuan Yu Cai Qiang Gu Di Sang Research on Modified High-Performance Cement Mortar of Prefabricated Buildings Based on Orthogonal Test International Journal of Concrete Structures and Materials modified cement mortar orthogonal test compressive strength fluidity mortar ratio silica fume content |
| title | Research on Modified High-Performance Cement Mortar of Prefabricated Buildings Based on Orthogonal Test |
| title_full | Research on Modified High-Performance Cement Mortar of Prefabricated Buildings Based on Orthogonal Test |
| title_fullStr | Research on Modified High-Performance Cement Mortar of Prefabricated Buildings Based on Orthogonal Test |
| title_full_unstemmed | Research on Modified High-Performance Cement Mortar of Prefabricated Buildings Based on Orthogonal Test |
| title_short | Research on Modified High-Performance Cement Mortar of Prefabricated Buildings Based on Orthogonal Test |
| title_sort | research on modified high performance cement mortar of prefabricated buildings based on orthogonal test |
| topic | modified cement mortar orthogonal test compressive strength fluidity mortar ratio silica fume content |
| url | https://doi.org/10.1186/s40069-022-00534-8 |
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